81872049

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{25819}}^1$

素因数の和:25980

約数の個数: 16

約数和(自身を含む): 125588480

約数和(自身を除く): 43716431

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 25819, 77457, 180733, 542199, 3898669, 11696007, 27290683, 81872049]

約数ペア:

[(1, 81872049), (3, 27290683), (7, 11696007), (21, 3898669), (151, 542199), (453, 180733), (1057, 77457), (3171, 25819)]